Device foe opeeating window sash



BBAUMGARTNBR.' DEVICE FOR OPERATING WINDOW SASH.

No. 85,856. Patentedne. 88, 1868.

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FREDERICK'BAUMGARTNER, O F BROOKLYN, NEW YO RK. Leners Para: No. 85,356, com: December 29, 186s; named Decana i7. 186s.

IMPROVEMENT IN DEVICE ron QPERATING WINDOW-seen.

f The Schedule referred to in thesenllettezs Patent and making of the same.

To all 'whom it concemf:

Be it known that I, FREDERICK B AUMGARTNER, o`f- .the city of Brooklyn, in the county of Kings, and State of N ew York, have invented a new and improved Device for Raising yWindow-Sashes; and I do hereby declare that the following is a full,l clear, and exact description of the same, reference being had to theannexed drawings, forming part of this specification, in-which Figure lis a vertical transverse section of a window-A frarn'e,'taken on the line :e :L3-iig: 2, showing my invention as applied to a window.

Figure 2 is a front sectional view of my invention,

the section being take-n' on the 'line y y, iig. '1.

Similar letters of -reference'indicate'like partsinv both figures.

My invention consists in the VcombinittifllleQ'glitpothed wheel, perforated band, and device for holding the bandclosely up to saidwheel, so that its teeth will always lenter the perforations in saidband, whereby I am en` abled to produce a-simple and eicient device for raising `window-sashes, as will be presently more fully'sct'A forth.

A designatesa metallic ribbon orbelt', which. is secured at or neareach end tp the edge of the windowsaSh, and which is perforated with holes, cfa, atrcertain distances apart, as shown-clearly in figs. 1vl and12.. 1` I will here remark, that as an equivalent for a nretallic belt, a band of any' suitable material, with or without perforations or eyelets, may he used.

B is a toothed wheel,which is axledin a box,'(l, which latter lis secured in a-recess made in the casing of the wind'ow.

- The teeth b of this wheel B are placed at such dis- 'ancesI apart that, as the said wheel revolves, they will pass into the hole's'a a. inthe belt A, as will b e clearlyA yunderstood by reference `to iig. l.

D is a spiral spring, which -is arranged within the h qx C, and which, in the Apresent instance, -is held at its".lower end, at ornear the bottomof the said box, l

(refer to fig. 1,) andhich has connected toits 'upper end a cord, c, which cord passes over a'drum, d, or over` an'enlarged port-ion ofthe axle ofthe wheel B, as will 'Je understood by reference to fig. 2. In this' instance :he spring is a compressed one, but if a distended one be used, the cord would be attached tothe lower'part,

and the upper part' be supported, and the operation would be the same,'as is obvions.

E'is a pawl, secure-dto a-rod or shaft, f, which latter is journalled in the box 0,'so that one end of said rod will project through the window-casing far enough to he seized and turned-with thehand, for the purpose of disengaging the said pawlr frorn'the teeth of a wheel, e, or its equivalent, securedeither to th"y wheel B, or on the axle d, when itisdesired toraise the sash; and for the purpose oi' causing said pawl to engage proporly with the teeth of the wheel e, I employ a dat spring, g, which bears against the lower. end of said pawl, and keeps it engagedwith the teeth ofthe wheel e.

' the sash, however much the same may shrink or swell.

lt will be noticed from the above description, and byv reference to the`acconipanying drawing, that in irst adjusting the deviceto a window, it will be necessary' to cause the teeth 4oi". the band A to engage with the wheel B at snch position of the partsof the device that when the sash is down the spring will bc stretched lby the cordvc being wound on' the drum d--the sash being shown in fig. 1 as nearly completely lowered.

I 2 This being the conditionof the parts, itis only neces.

saryV to disengage the fpawlE from the teeth of the wheel c, when the\tendency.of.the spring-will b' to rcsume its normal condiiomand hence assist in elevating the window-sash.

It willl be herenoticed that when the pawl E is engaged with the teeth of the ratchet`wheel e,-the wheel B cannot be turned f'm one direction, and hencethe sash cannot-be'raised. This is the case, whatever may bethe distance the sash is elevated.

It will be further noticed that .the sash can be .slid down without manipulating the shaft j; aiidthat the voperation of shoving it down winds the Acord c on the drum d, and hence the device is always in an operative condition.

f My, invention provides a simple and etlicient device for. raising'and locking wndowsashes,. one 'which will always be i'n operai-,ive condition, whether the sash be shrunken or swollen.

'What I claim as my invention, and desire to secure4 by Letters Patent, s-

.The combination of the wheel B, band A, and de vice'h i t', or its equivalent, arranged and operating substantially as and' for the purposes herein set forth.

FREDERIGK BAUMGARTNER. Witnesses: JoHN COOPER,

M. M. LIVINGSTON. 

